Remove unused code from association.rb now that Relation takes care of checking the referenced tables
Remove unused code from association.rb now that Relation takes care of checking the referenced tables

travisofthenorth/rails,mtsmfm/rails,bolek/rails,riseshia/railsguides.kr,yawboakye/rails,kddeisz/rails,kenta-s/rails,arjes/rails,bogdanvlviv/rails,baerjam/rails,printercu/rails,yawboakye/rails,assain/rails,utilum/rails,Edouard-chin/rails,riseshia/railsguides.kr,vassilevsky/rails,88rabbit/newRails,esparta/rails,illacceptanything/illacceptanything,illacceptanything/illacceptanything,kmayer/rails,kmcphillips/rails,mechanicles/rails,bradleypriest/rails,marklocklear/rails,Edouard-chin/rails,ngpestelos/rails,aditya-kapoor/rails,flanger001/rails,BlakeWilliams/rails,travisofthenorth/rails,rails/rails,yahonda/rails,Stellenticket/rails,starknx/rails,tgxworld/rails,coreyward/rails,pvalena/rails,jeremy/rails,esparta/rails,yhirano55/rails,riseshia/railsguides.kr,MichaelSp/rails,stefanmb/rails,88rabbit/newRails,tgxworld/rails,prathamesh-sonpatki/rails,Edouard-chin/rails,matrinox/rails,Envek/rails,illacceptanything/illacceptanything,gauravtiwari/rails,kddeisz/rails,illacceptanything/illacceptanything,palkan/rails,gavingmiller/rails,vipulnsward/rails,deraru/rails,MSP-Greg/rails,stefanmb/rails,illacceptanything/illacceptanything,Envek/rails,Vasfed/rails,samphilipd/rails,Vasfed/rails,brchristian/rails,flanger001/rails,arjes/rails,vipulnsward/rails,vassilevsky/rails,joonyou/rails,flanger001/rails,felipecvo/rails,fabianoleittes/rails,notapatch/rails,pvalena/rails,richseviora/rails,kaspth/rails,tgxworld/rails,gcourtemanche/rails,odedniv/rails,marklocklear/rails,esparta/rails,palkan/rails,mtsmfm/railstest,mohitnatoo/rails,iainbeeston/rails,odedniv/rails,schuetzm/rails,yalab/rails,printercu/rails,vassilevsky/rails,kenta-s/rails,Edouard-chin/rails,schuetzm/rails,lcreid/rails,kamipo/rails,BlakeWilliams/rails,xlymian/rails,pvalena/rails,hanystudy/rails,kddeisz/rails,utilum/rails,notapatch/rails,prathamesh-sonpatki/rails,eileencodes/rails,MSP-Greg/rails,untidy-hair/rails,lcreid/rails,mohitnatoo/rails,deraru/rails,amoody2108/TechForJustice,Spin42/rails,jeremy/rails,schuetzm/rails,Spin42/rails,yasslab/railsguides.jp,ngpestelos/rails,ledestin/rails,richseviora/rails,tjschuck/rails,starknx/rails,gcourtemanche/rails,kddeisz/rails,gavingmiller/rails,rbhitchcock/rails,rafaelfranca/omg-rails,mathieujobin/reduced-rails-for-travis,Spin42/rails,mechanicles/rails,Envek/rails,arunagw/rails,lucasmazza/rails,MichaelSp/rails,yawboakye/rails,mathieujobin/reduced-rails-for-travis,shioyama/rails,tijwelch/rails,mtsmfm/rails,repinel/rails,rbhitchcock/rails,palkan/rails,Erol/rails,fabianoleittes/rails,kmayer/rails,mijoharas/rails,rails/rails,printercu/rails,tijwelch/rails,kmcphillips/rails,voray/rails,jeremy/rails,deraru/rails,kachick/rails,felipecvo/rails,baerjam/rails,felipecvo/rails,pvalena/rails,joonyou/rails,deraru/rails,eileencodes/rails,vipulnsward/rails,rails/rails,yahonda/rails,alecspopa/rails,baerjam/rails,alecspopa/rails,joonyou/rails,mechanicles/rails,ledestin/rails,travisofthenorth/rails,bradleypriest/rails,sealocal/rails,ttanimichi/rails,xlymian/rails,tgxworld/rails,repinel/rails,voray/rails,kachick/rails,pschambacher/rails,illacceptanything/illacceptanything,mtsmfm/rails,kirs/rails-1,gauravtiwari/rails,shioyama/rails,illacceptanything/illacceptanything,kaspth/rails,pschambacher/rails,arunagw/rails,marklocklear/rails,untidy-hair/rails,gauravtiwari/rails,tjschuck/rails,assain/rails,mohitnatoo/rails,riseshia/railsguides.kr,fabianoleittes/rails,kamipo/rails,yahonda/rails,shioyama/rails,utilum/rails,amoody2108/TechForJustice,ngpestelos/rails,rbhitchcock/rails,repinel/rails,matrinox/rails,bolek/rails,prathamesh-sonpatki/rails,koic/rails,samphilipd/rails,gavingmiller/rails,mijoharas/rails,kmayer/rails,Vasfed/rails,sergey-alekseev/rails,amoody2108/TechForJustice,betesh/rails,lcreid/rails,printercu/rails,mijoharas/rails,Vasfed/rails,coreyward/rails,pschambacher/rails,voray/rails,yasslab/railsguides.jp,gcourtemanche/rails,iainbeeston/rails,mtsmfm/railstest,gfvcastro/rails,ttanimichi/rails,EmmaB/rails-1,kirs/rails-1,MSP-Greg/rails,eileencodes/rails,ttanimichi/rails,hanystudy/rails,schuetzm/rails,yalab/rails,elfassy/rails,kmcphillips/rails,elfassy/rails,maicher/rails,jeremy/rails,MichaelSp/rails,rossta/rails,illacceptanything/illacceptanything,rossta/rails,Stellenticket/rails,assain/rails,kirs/rails-1,aditya-kapoor/rails,georgeclaghorn/rails,bolek/rails,rafaelfranca/omg-rails,gfvcastro/rails,BlakeWilliams/rails,sealocal/rails,rails/rails,arjes/rails,BlakeWilliams/rails,bogdanvlviv/rails,yasslab/railsguides.jp,betesh/rails,mtsmfm/railstest,alecspopa/rails,iainbeeston/rails,aditya-kapoor/rails,gfvcastro/rails,betesh/rails,yawboakye/rails,illacceptanything/illacceptanything,hanystudy/rails,shioyama/rails,flanger001/rails,koic/rails,bogdanvlviv/rails,mechanicles/rails,Stellenticket/rails,fabianoleittes/rails,Sen-Zhang/rails,maicher/rails,kachick/rails,koic/rails,lucasmazza/rails,mathieujobin/reduced-rails-for-travis,rafaelfranca/omg-rails,matrinox/rails,georgeclaghorn/rails,Stellenticket/rails,Erol/rails,untidy-hair/rails,Sen-Zhang/rails,assain/rails,yassla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